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Pre-training on large-scale video data has become a common recipe for learning transferable spatiotemporal representations in recent years. Despite some progress, existing methods are mostly limited to highly curated datasets (e.g., K400)…

计算机视觉与模式识别 · 计算机科学 2023-03-14 Ziyun Zeng , Yuying Ge , Xihui Liu , Bin Chen , Ping Luo , Shu-Tao Xia , Yixiao Ge

The abundance and ease of utilizing sound, along with the fact that auditory clues reveal so much about what happens in the scene, make the audio-visual space a perfectly intuitive choice for self-supervised representation learning.…

计算机视觉与模式识别 · 计算机科学 2021-06-17 Mahdi M. Kalayeh , Nagendra Kamath , Lingyi Liu , Ashok Chandrashekar

In medical-data driven learning, 3D convolutional neural networks (CNNs) have started to show superior performance to 2D CNNs in numerous deep learning tasks, proving the added value of 3D spatial information in feature representation.…

图像与视频处理 · 电气工程与系统科学 2024-01-24 Xin Wang , Ruisheng Su , Weiyi Xie , Wenjin Wang , Yi Xu , Ritse Mann , Jungong Han , Tao Tan

Despite the significant progress made by deep learning in natural image matting, there has been so far no representative work on deep learning for video matting due to the inherent technical challenges in reasoning temporal domain and lack…

计算机视觉与模式识别 · 计算机科学 2021-04-23 Yanan Sun , Guanzhi Wang , Qiao Gu , Chi-Keung Tang , Yu-Wing Tai

Data augmentation is a powerful technique to enhance the performance of a deep learning task but has received less attention in 3D deep learning. It is well known that when 3D shapes are sparsely represented with low point density, the…

计算机视觉与模式识别 · 计算机科学 2023-11-23 Tuan-Anh Vu , Srinjay Sarkar , Zhiyuan Zhang , Binh-Son Hua , Sai-Kit Yeung

Self-supervised learning has been widely used to obtain transferrable representations from unlabeled images. Especially, recent contrastive learning methods have shown impressive performances on downstream image classification tasks. While…

计算机视觉与模式识别 · 计算机科学 2021-04-29 Byungseok Roh , Wuhyun Shin , Ildoo Kim , Sungwoong Kim

Autoregressive models have shown superior performance and efficiency in image generation, but remain constrained by high computational costs and prolonged training times in video generation. In this study, we explore methods to accelerate…

机器学习 · 计算机科学 2026-04-10 Yucheng Zhou , Jianbing Shen

Image cropping aims to improve the composition as well as aesthetic quality of an image by removing extraneous content from it. Existing image cropping databases provide only one or several human-annotated bounding boxes as the groundtruth,…

计算机视觉与模式识别 · 计算机科学 2019-04-10 Hui Zeng , Lida Li , Zisheng Cao , Lei Zhang

Robust robotic task execution hinges on the reliable detection of execution failures in order to trigger safe operation modes, recovery strategies, or task replanning. However, many failure detection methods struggle to provide meaningful…

机器人学 · 计算机科学 2025-09-24 Santosh Thoduka , Sebastian Houben , Juergen Gall , Paul G. Plöger

Fine-grained action detection is an important task with numerous applications in robotics and human-computer interaction. Existing methods typically utilize a two-stage approach including extraction of local spatio-temporal features…

计算机视觉与模式识别 · 计算机科学 2019-11-11 Khoi-Nguyen C. Mac , Dhiraj Joshi , Raymond A. Yeh , Jinjun Xiong , Rogerio S. Feris , Minh N. Do

Supervised training of neural networks requires large, diverse and well annotated data sets. In the medical field, this is often difficult to achieve due to constraints in time, expert knowledge and prevalence of an event. Artificial data…

图像与视频处理 · 电气工程与系统科学 2021-10-01 Andreas Wachter , Werner Nahm

Recent years have witnessed rapid advances in learnt video coding. Most algorithms have solely relied on the vector-based motion representation and resampling (e.g., optical flow based bilinear sampling) for exploiting the inter frame…

图像与视频处理 · 电气工程与系统科学 2021-08-29 Haojie Liu , Ming Lu , Zhiqi Chen , Xun Cao , Zhan Ma , Yao Wang

We tackle catastrophic forgetting problem in the context of class-incremental learning for video recognition, which has not been explored actively despite the popularity of continual learning. Our framework addresses this challenging task…

计算机视觉与模式识别 · 计算机科学 2022-03-28 Jaeyoo Park , Minsoo Kang , Bohyung Han

While Multimodal Large Language Models (MLLMs) offer strong perception and reasoning capabilities for image-text input, Visual Question Answering (VQA) focusing on small image details still remains a challenge. Although visual cropping…

计算机视觉与模式识别 · 计算机科学 2025-10-30 Liangyu Zhong , Fabio Rosenthal , Joachim Sicking , Fabian Hüger , Thorsten Bagdonat , Hanno Gottschalk , Leo Schwinn

The accelerated MRI reconstruction process presents a challenging ill-posed inverse problem due to the extensive under-sampling in k-space. Recently, Vision Transformers (ViTs) have become the mainstream for this task, demonstrating…

图像与视频处理 · 电气工程与系统科学 2024-12-17 Yucong Meng , Zhiwei Yang , Yonghong Shi , Zhijian Song

We address the problem of Visual Question Answering (VQA), which requires joint image and language understanding to answer a question about a given photograph. Recent approaches have applied deep image captioning methods based on…

计算机视觉与模式识别 · 计算机科学 2016-03-22 Huijuan Xu , Kate Saenko

Fine-grained video classification requires understanding complex spatio-temporal and semantic cues that often exceed the capacity of a single modality. In this paper, we propose a multimodal framework that fuses video, image, and text…

计算机视觉与模式识别 · 计算机科学 2025-07-08 Namho Kim , Junhwa Kim

As deep convolutional neural networks (DNNs) are widely used in various fields of computer vision, leveraging the overfitting ability of the DNN to achieve video resolution upscaling has become a new trend in the modern video delivery…

计算机视觉与模式识别 · 计算机科学 2023-06-21 Gen Li , Jie Ji , Minghai Qin , Wei Niu , Bin Ren , Fatemeh Afghah , Linke Guo , Xiaolong Ma

Representation learning has significantly been developed with the advance of contrastive learning methods. Most of those methods have benefited from various data augmentations that are carefully designated to maintain their identities so…

计算机视觉与模式识别 · 计算机科学 2022-01-24 Xiao Wang , Guo-Jun Qi

Contrastive instance discrimination methods outperform supervised learning in downstream tasks such as image classification and object detection. However, these methods rely heavily on data augmentation during representation learning, which…

计算机视觉与模式识别 · 计算机科学 2025-04-21 Mohammad Alkhalefi , Georgios Leontidis , Mingjun Zhong